IPv6 Information CenterARIN and the other RIRs have distributed IPv6 alongside IPv4 since 1999. So far, ARIN has issued both versions in tandem and has not advocated one over the other, though it has closely monitored distribution trends with the understanding that the IPv4 available resource pool would continue to diminish.Added on: 17-Sep-2007 | hits: 34490Report broken link | Details